Erik set a goal to sell 900 cars this year. He sells 30 cars in January, 38 in February, and 46 in March. If Erik keeps this pattern, will he reach his goal?

Answers

Answer 1

Answer: no

Step-by-step explanation:

Based on the information provided, it appears that Erik is increasing the number of cars he sells each month by 8. If he continues this pattern, he will sell 54 cars in April, 62 in May, and so on. By December, he will have sold a total of 678 cars (30 + 38 + 46 + … + 126), which is less than his goal of 900 cars. So no, if Erik keeps this pattern, he will not reach his goal.Based on the information provided, it appears that Erik is increasing the number of cars he sells each month by 8. If he continues this pattern, he will sell 54 cars in April, 62 in May, and so on. By December, he will have sold a total of 678 cars (30 + 38 + 46 + … + 126), which is less than his goal of 900 cars. So no, if Erik keeps this pattern, he will not reach his goal.


Related Questions

Hey I have some work rate math problems, if anyone can help me solve them id appreciate it.

The owner of a house require that the house be painted in 32 hours (4 work days). Mr. Paint, a painting contractor, would need 40 hours (5 days) to paint the house alone. To make sure the house is painted in 32 hours, Mr. Paint hires an assistant. How long would the assistant need to paint the house alone? ( for question 1,2 & 3)

1- Let x represent the amount of time the assistant would need to paint the house alone. Write an expression that shows the hourly rate at which Mr. Paint and his assistant work together to paint the house.
2- Now write an equation that can be used to determine the rate at which the assistant works.
3- If we know that the assistant works at a rate that would take him 160 hours to finish the job alone, and Mr. Paint receives $40 an hour for the job, how much should he pay his assistant?
4- Now consider a different scenario. A type of swimming pool holds 100 gallons of water. One hose can fill the pool in 12 hours while another takes only 10 hours. How long will it take for the pool to be filled if both hoses are used?
5- Working alone, a landscaper could build a retaining wall in 38 hours, while his apprentice could build the wall in 62 hours. If t represents the number of hours it would take them to build the wall while working together, which equation is correct?
6- Every night after closing, the moat in the hippopotamus exhibit at a zoo is drained and cleaned. The zoo currently has one pipe that can drain the moat in 50 minutes. It is considering installing a second pipe to speed up draining. The table below shows different times that the new pipe might take to drain the moat alone. In each row of the table, fill in the number of minutes it would take for both pipes to drain the pool simultaneously. Round your answers to the nearest tenth of a minute, when necessary.

Answers

Answer:

Step-by-step explanation:

1. 1/40 + 1/x

2. 1/32 = 1/40 +1/x

3. $8 per hour

4. about 5.5 hours

5. 1/38 + 1/62 = t/x

6.

1. 16.7

2. 22.2

3. 26.2

4. 29.2

nice pfp

or Rewrite the following equation in slope-intercept form. 8x + 3y = –17 Write your answer using integers, proper fractions, and improper fractions in simplest form.

Answers

Answer:

-17 - 3y = 8x

Step-by-step explanation:

what are the answers to this?

Answers

The quotient and the remainder of the rational function are x + 4 and - 4.

How to determine the quotient and the remainder

In this problem we find the case of a rational function of the form R(x) = P(x) / Q(x), where P(x) and Q(x) are polynomials for the numerator and the denominator, respectively. The result of the rational function is represented by the following expression:

R(x) = S(x) + D(x) / Q(x)

Where:

S(x) - QuotientD(x) - Remainder

If we know that P(x) = 2 · x² + 16 · x + 24 and Q(x) = 2 · x + 4, then the quotient and the remainder are, respectively:

R(x) = (2 · x² + 16 · x + 24) / (2 · x + 4)

R(x) = [2 · (x² + 8 · x + 12)] / [2 · (x + 4)]

R(x) = (x² + 8 · x + 12) / (x + 4)

R(x) = [(x² + 8 · x + 16) - 4] / (x + 4)

R(x) = [(x + 4)² - 4] / (x + 4)

R(x) = (x + 4) - 4 / (x + 4)

Quotient: (x + 4)

Remainder: - 4

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EFGH is a kite. Find angle G.

Answers

The value of angle G for both kites are respectively:

∠G = 110°

∠G = 80°

How to find the missing angle of the kite?

In a kite, the angles between the two non- congruent sides usually have the same angle size. Thus:

∠E ≅ ∠G

In a quadrilateral, the sum of the inner angles is 360 degrees. Thus:

100 + 40 + ∠E + ∠G = 360

140 + 2(∠G) = 360

2(∠G) = 360 - 140

(∠G) = 220/2

∠G = 110°

Similarly, for the second kite:

∠G = 360 - (110 + 60 + 110)

∠G = 80°

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The principal advantage of the Dodge-Romig tables is: A. minimum inspection B. its desirability for receiving inspection C. smaller lot sizes D. simplicity

Answers

The principal advantage of the Dodge-Romig tables is their simplicity. Therefore, the correct answer is D. simplicity.

The Dodge-Romig tables are statistical sampling tables used in quality control to determine the acceptance or rejection

of a production lot based on sample size and the number of defects found in the sample.

The principal advantage of the Dodge-Romig tables is their simplicity.

They provide a quick and easy method for determining the acceptability of a production lot, without the need for

extensive calculations or statistical knowledge.

This means that they can be used by personnel with limited training in quality control.

The principal advantage of the Dodge-Romig tables is their simplicity. While they can be used for receiving inspection,

their main benefit is in minimizing inspection time and effort by providing clear guidelines for lot sampling and

acceptance based on size and level of defects.

Additionally, their use can facilitate smaller lot sizes and more efficient quality control processes.

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PLEASE ANSWER ASAP
1. How many atoms are present in 8.500 mole of chlorine atoms?
2. Determine the mass (g) of 15.50 mole of oxygen.
3. Determine the number of moles of helium in 1.953 x 108 g of helium.
4. Calculate the number of atoms in 147.82 g of sulfur.
5. Determine the molar mass of Co.
6. Determine the formula mass of Ca3(PO4)2.
IT WOULD BE HELPFUL

Answers

The number of atoms present in 8.500 mole of chlorine atoms can be calculated using Avogadro's number, which is 6.022 x [tex]10^{23}[/tex] atoms per mole. Therefore:

Number of atoms = 8.500 mole x 6.022 x [tex]10^{23}[/tex]atoms/mole

Number of atoms = 5.1177 x [tex]10^{24}[/tex] atoms

Find out the mass (g) of 15.50 mole of oxygen?

The mass of 15.50 mole of oxygen can be calculated using the molar mass of oxygen, which is 16.00 g/mol. Therefore:

Mass = 15.50 mole x 16.00 g/mole

Mass = 248 g

The number of moles of helium in 1.953 x [tex]10^{8}[/tex] g of helium can be calculated using the molar mass of helium, which is 4.00 g/mol. Therefore:

Number of moles = 1.953 x [tex]10^{8}[/tex] g / 4.00 g/mol

Number of moles = 4.883 x [tex]10^{7}[/tex] mol

The number of atoms in 147.82 g of sulfur can be calculated using the molar mass of sulfur, which is 32.06 g/mol, and Avogadro's number. Therefore:

Number of moles = 147.82 g / 32.06 g/mol

Number of moles = 4.608 mol

Number of atoms = 4.608 mol x 6.022 x [tex]10^{23}[/tex] atoms/mol

Number of atoms = 2.773 x [tex]10^{24}[/tex] atoms

The molar mass of Co (cobalt) is 58.93 g/mol.

The formula mass of Ca3(PO4)2 can be calculated by adding the atomic masses of each element in the compound. The atomic masses are:

Ca = 40.08 g/mol

P = 30.97 g/mol

O = 16.00 g/mol

Formula mass = (3 x Ca) + (2 x P) + (8 x O)

Formula mass = (3 x 40.08 g/mol) + (2 x 30.97 g/mol) + (8 x 16.00 g/mol)

Formula mass = 310.18 g/mol

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2. The value, v(t), of a car depreciates according to the function v(t) = P(.85)', where P is the
purchase price of the car and t is the time, in years, since the car was purchased. State the
percent that the value of the car decreases by each year. Justify your answer.

Answers

the value of the car decreases by 15 percent each year. This means that the value of the car decreases to 85% of its previous year's value every year.

what do you mean by term  decreases  ?

In this context, "decreases" means that the value of the car is getting smaller over time. The term "decrease" is often used in mathematics to describe a decrease in the numerical value of a quantity. In this case, the value of the car is decreasing by 15% each year, which means that its value is getting smaller by 15% of the previous year's value.

In the given question,

The given function for the value of the car is:

v(t) = P(0.85)ⁿ

Here, P is the initial purchase price of the car, and t is the time in years since the car was purchased.

To find the percent that the value of the car decreases by each year, we need to find the ratio of the decrease in value to the initial value, and express it as a percentage.

Let's consider the value of the car after one year, i.e., when t=1. The value of the car after one year is:

v(1) = P(0.85)¹ = 0.85P

The decrease in value from the initial value P is:

P - v(1) = P - 0.85P = 0.15P

Therefore, the ratio of the decrease in value to the initial value is:

(0.15P/P) = 0.15

To express this ratio as a percentage, we multiply by 100, which gives:

0.15 x 100% = 15%

Therefore, the value of the car decreases by 15% each year. This means that the value of the car decreases to 85% of its previous year's value every year.

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What is 2. 803 rounded to the nearest half​

Answers

Answer: 3

Step-by-step explanation:

The cost, in dollars, of a single-story home can be approximated using the formula
C = klw, where is the approximate length of the home and w is the approximate
width of the home. Find the units for the coefficient k.

Answers

The unit for the coefficient k would be dollars per unit of length squared.

Units of a variable

To find the units for the coefficient k in the formula C = klw, we need to analyze the units of each variable.

C represents the cost of the home, which is measured in dollars.

l represents the length of the home, which is measured in some units of length, such as feet or meters.

w represents the width of the home, which is also measured in some units of length, such as feet or meters.

Therefore, we can determine the units for k by analyzing how the units for C, l, and w combine in the formula C = klw.

Starting with the left-hand side of the equation, we know that C represents dollars.

On the right-hand side of the equation, we have k times l times w. To determine the units of k, we need to figure out what units would make the entire right-hand side of the equation equal to dollars.

Since we are multiplying three quantities (k, l, and w), the units of k must cancel out the units of length in l and w in order to leave us with units of dollars.

This means that the units of k must be dollars per unit of length squared. We can write this as:

k = $/length^2

So, the units for the coefficient k in the formula C = klw are dollars per unit of length squared.

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a factory has a machine which bends wire at a rate of 2 unit(s) of curvature per second. how long does it take to bend a straight wire into a circle of radius 4?

Answers

If a factory machine bends wire at rate of 2 units of curvature per  second, then the time required to bend the "straight-wire" into a circle of radius of 4 is 12.56 seconds.

The "Circumference" of a circle is defined as the total length of the curve which makes up the circle's outer boundary,

The formula for "circumference" of a circle is ⇒ C = 2 × π × r,

where "C" = circumference, "π" ≈ 3.14159, and "r" = radius,

In this case, the radius of circle is = 4 units,

So, we substitute "r" = 4,

We get,

⇒ Circumference = 2 × π × 4,

⇒ Circumference = 8π

The machine bends wire at a rate of 2 units of curvature per second, we  use the circumference of circle to calculate how long it takes to bend the wire into a complete circle.

The machine bends 2 units of curvature per second, and the circumference of the circle is 8π units,

So, the time taken to bend wire into a complete circle is :

⇒ Time = (Circumference)/(Rate of bending),

⇒ Time = 8π/2,

⇒ Time = 4π ≈ 12.56 seconds.

Therefore, it would take approximately 12.56 seconds to bend a "straight-wire" into a circle.

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A line intersects the points (-3, 4) and
(-2, 3). What is the slope-intercept
equation for this line?
y = -x + [?]

Answers

The slope-intercept equation of line is -1 and equation will be y = -x - 1.

What is the slope?

m = (y2 - y1) / (x2 - x1) is the formula for calculating slope from two points on a line, (x1, y1) and (x2, y2). Here,

m = the line's slope

x1 is equal to the initial point's x-coordinate.

y1 is the first point's y-coordinate.

x2 is equal to the second point's x-coordinate.

The second point's x-coordinate is equal to y2.

x1 = -3, y1 = 4; x2= -2, y2=3

m = (3-4)/(-2 - (-3))

= -1 / (-2+3)

= -1/1

m = -1

Substitute the value in given equation:

y = -x + (-1)

y = -x - 1

Hence, the slope-intercept equation of line is -1 and equation will be y = -x - 1.

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Write the point-slope form of the equation of the line that passes through the points (6, -9) and (7, 1). Include your work in your final answer. Type your answer in the box provided to submit your solution.

Answers

Therefore , the solution of the given problem of equation comes out to be 10x - y = 51 is the point-slope form of the equation of the line passing through the points (6, -9) and (7, 1).

Explain the equation.

Variable words are frequently used in complex algorithms to show consistency between two arguments that are opposed to one another. Academic expressions called equations are used to show the equality of various academic figures. Take into account the details in the z + 7 proposals.

Here,

The equation for the line passing between the points (6, -9) and (7, 1) must be found in the point-slope form.

Using the equation m = (y2 - y1) / (x2 - x1), find the slope (m) of the line, where (x1, y1) and (x2, y2) are the coordinates of the two points.

=> (x1, y1) = (6, -9)

=> (x2, y2) = (7, 1)

=> m = (1 - (-9)) / (7 - 6)

=> m = 10 / 1 m = 10

Consequently, the line's slope is 10.

=> y - y1 = m(x - x1)

=> m = 10 (x1, y1) = (6, -9)

=> y - (-9) = 10(x - 6)

=> y + 9 = 10x - 60

=> 10x - y = 51

Therefore, 10x - y = 51 is the point-slope form of the equation of the line passing through the points (6, -9) and (7, 1).

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Evaluate the following.
Write an exponential function of the form y=ab^x that has the given points
1. (1,5), (2, 7)

Answers

The exponential function of the form y=ab^x that has the given points is y = (25/7)(7/5)^x

Writing the exponential function

We can use the given points to set up a system of equations and solve for the values of a and b in the exponential function y = ab^x.

Using the point (1,5), we get:

5 = ab^1

Using the point (2,7), we get:

7 = ab^2

Now, we can solve for a and b by dividing the second equation by the first:

7/5 = (ab^2)/(ab^1

Simplifying this expression, we get:

7/5 = b

Substituting this value of b back into one of the original equations, we can solve for a:

5 = a(b^1) = a(b) = a(7/5)

Simplifying this expression, we get:

a = 25/7

So, the exponential function that passes through the points (1,5) and (2,7) is:

y = (25/7)(7/5)^x

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Plssss help it is asking to find the surface area of this triangular prism

Answers

The total surface area of the triangular prism is calculated to be equal to 608 square centimeters.

How to calculate for the total surface area of the triangular prism

The triangular prism can be observed to be a large rectangle and two identical triangles, so we shall calculate for the total surface area as follows:

area of one triangle = 1/2 × 8 cm × 12 cm

area of one triangle = 48 cm²

area of the two triangle faces = 2(48) = 96 cm²

area of the large rectangle face = (10 + 12 + 12) cm × 16 cm = 512 cm²

Total surface area of prism = 96 cm² + 512 cm² = 608 cm²

Therefore, the total surface area of the triangular prism is calculated to be equal to 608 square centimeters.

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Which decimal is less than 0. 8 and greater than 0. 02

A. 0. 81

B. 0. 46

C. 0. 86

D. 0. 6

Answers

The decimal which is less than 0. 8 and greater than 0. 02 is 0. 46 (option B).

To answer this question, we need to understand how decimals work. A decimal is a number that represents a value less than one, and it is denoted by a dot or a period. The digits that come after the dot represent the number of tenths, hundredths, thousandths, etc., depending on the place value of the digit.

Now, let's consider the given options: 0.81, 0.46, 0.86, and 0.6. We need to find the decimal that lies between 0.8 and 0.02.

We can eliminate option D, 0.6, as it is less than 0.8. Similarly, we can eliminate option A, 0.81, as it is greater than 0.8.

To choose between options B, 0.46, and C, 0.86, we need to compare them with the given values, 0.8 and 0.02. We can see that 0.46 is less than 0.8 but greater than 0.02.

Therefore, the answer is option B, 0.46.

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Use the diagram, state the value of the given trigonometric ratio

Answers

Using the trigonometric ratios Cos and Tan we can find Cos A = 0.8 and Tan C = 0.75 from the given diagram.

What are Trigonometric ratios?

Trigonometric ratios are mathematical functions used to relate the angles and sides of a right-angled triangle. The three primary trigonometric ratios are:

Sine : It is the ratio between the opposite side of the right triangle and the hypotenuse of the right triangle.

Cosine : It is the ratio between the adjacent side of the right triangle and the hypotenuse of the right triangle.

Tangent : It is the ratio between the opposite side of the right triangle and the adjacent side of the right triangle.

We know that Cos A = adjacent side of the right triangle/ hypotenuse of the right triangle

That is Cos A = AB/AC = 32/40 = 0.8

Similarly Tan C = opposite side of the right triangle/ adjacent side of the right triangle

That is Tan C = BC/AB = 24/32 = 0.75

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A landscaping business owner buys a new riding mower for $9,600. 0. The owner makes a $1,000 down payment and applies for an $8,600 four-year, 3. 5% interest rate installment loan, with monthly payments of $192. 26. What is the total cost of the mower? $8,600. 00 $9,600. 00 $9,228. 56 $10,228. 48

Answers

The total cost of mower is $10,228.48. The correct option from the following option given is D.

A down payment on a cottage is the money paid in advance by the buyer in a real estate transaction or other large purchase. Down payments are typically a portion of the sales price and can range from 3% to 20% for a primary residence.

The total cost of the mower will be the sum of the down payment and the total amount paid through the loan:

Down payment = $1,000

Total amount paid through the loan = (monthly payment) x (number of months) = $192.26 x 48 = $9,228.48

The total cost of the mower is:

Total cost = Down payment + Total amount paid through the loan

Total cost = $1,000 + $9,228.48

Total cost = $10,228.48

Therefore, the total cost of the mower is $10,228.48.

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For each equation, decide whether the line it represents is parallel to p, perpendicular to p, or neither.
y=-3x+10
type your answer.....
y-5=-(2+2) type your answer...
type your answer...
-3x+y=1 type your answer.....

Answers

Therefore, the slope of the line represented by this equation is -3.

What is equation?

An equation is a mathematical statement that shows that two expressions are equal. It contains variables, constants, and mathematical operations such as addition, subtraction, multiplication, division, exponentiation, etc. An equation can also be seen as a balance scale, where both sides of the equation must be equal in order for the equation to be true.

Here,

Now let's look at the given equations:

y=-3x+10

The equation is in slope-intercept form, y=mx+b, where m is the slope of the line. Therefore, the slope of the line represented by this equation is -3. To determine the relationship between this line and line p, we need to know the slope of line p.

y-5=-(2+2)

Simplifying this equation, we get y-5=-4 or y=-4+5 or y=1. This equation represents a horizontal line passing through y=1. A horizontal line has a slope of 0, which is neither parallel nor perpendicular to line p.

-3x+y=1

Rewriting this equation in slope-intercept form, we get y=3x+1. Therefore, the slope of the line represented by this equation is 3. To determine the relationship between this line and line p, we need to know the slope of line p.

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Cual es la constante de proporcionalidad para encontrar la cantidad por pagar a partir del número de cocadas si ni sabes no contestes o si no te denunció ​

Answers

The proportionality constant to find the amount to be paid based on the number of "cocadas" is the price per "cocada"

Proportionality constant is a mathematical term that refers to the constant value that relates two variables that are directly proportional to each other.

The proportionality constant to find the amount to be paid based on the number of "cocadas" will depend on the price per "cocada".

Let's say the price per "cocada" is represented by the variable "p" (in some currency), and the number of "cocadas" purchased is represented by the variable "n".

Then, the amount to be paid can be calculated using the formula

amount to be paid = p × n

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What is the missing length of a rectangular prism where the height and width are both 9 cm and the surface area is 432 cm2?

Answers

The missing length is 7.5 cm.

What is a rectangular prism?

A three-dimensional solid form with six faces, including rectangular bases, is called a rectangular prism. A rectangular prism also refers to a cuboid. A cuboid and a rectangular prism have the same cross-section.

Here, we have

Let the missing length be x cm.

The formula for the surface area of a rectangular prism is:

SA = 2lw + 2lh + 2wh

We are given that the height and width are both 9 cm, so we can substitute those values and simplify:

432 = 2(x)(9) + 2(x)(9) + 2(9)(9)

432 = 18x + 18x + 162

432 - 162 = 36x

270 = 36x

x = 270/36

x = 7.5

Hence, the missing length is 7.5 cm.

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The question is on the screenshot as always!

Answers

Answer:

I want 2 use dis medium 2 thk y’all 4 being part of my 2022.

As a frnd I say a Big Thk u

As a customer I say a Big Thk u

As a partner I say a Big Thk u

As a family member I say a Big Thk u

As my god ordained helper I say a Big Thk u!

God bless u n see y’all in 2023 in Grand Style. Amen09165574045

An item costs x dollars and then a 20% discount is applied. Select all the expressions that could represent the price of the item after the discount.

a. 20/100x

b. X-20/100x

c. (1-0. 20)x

d. 100-20/100x

e. 0. 80x

f. (100-20)x

please hurry! its due in 30 min!

Answers

The correct expressions that could represent the price of the item after the discount are (1-0.20)x and 0.80x. So, correct options are C and E.

When a 20% discount is applied to an item that costs x dollars, the price of the item after the discount can be represented as:

x - 0.20x = 0.80x

This means that the price of the item after the discount is 80% of its original price.

Now let's look at the given expressions and see which ones could represent the price of the item after the discount:

a. 20/100x - This expression represents the amount of the discount, not the price of the item after the discount.

b. X-20/100x - This expression represents the original price minus the discount, not the price of the item after the discount.

c. (1-0.20)x - This expression simplifies to 0.80x, which is correct.

d. 100-20/100x - This expression represents 100 minus the discount, not the price of the item after the discount.

e. 0.80x - This expression is correct, as we already determined that the price of the item after the discount is 0.80x.

f. (100-20)x - This expression represents the original price minus the discount as a percentage of the original price, not the price of the item after the discount.

Therefore, Correct options are C and E.

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the ____ numbering system is base 16; in other words, 16 numerals are used to express any given number

Answers

The hexadecimal system numbering system is base 16; in other words, 16 numerals are used to express any given number.

In this system, 16 numerals are used to represent any given number. The numerals used in this system are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, and F, where A represents 10, B represents 11, and so on, up to F, which represents 15.

This system is commonly used in computer science, as it is more compact than the decimal system, and allows for easier conversion between binary and decimal systems. In the hexadecimal system, each digit represents a power of 16, just as each digit in the decimal system represents a power of 10.

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A cruise ship travels 325 miles due east before turning 30° north of east. It travels 150 miles along its new course. How far is the cruise ship from its initial position?

1. 209 mi
2. 461 mi
3. 420 mi
4. 282 mi​​

Answers

As a result, the cruise ship has travelled roughly 443.92 miles of distance from its starting point.

Explain about the cosine rule:

This merely indicates that the cruise ship moved 325 miles east since it cruises 325 miles directly east. We can more clearly grasp what is happening if we draw a vertical line where he stops. I created the diagram I believe best illustrates this.

According to the diagram, we now need to determine h because it is the distance between our starting point and destination.

The supplement is 150 degrees because the outside angle is 30 degrees.

As a result, we can now use the cosine rule to find h.

x²  = 325² + 150² - 2(325)(150)cos(180 - 30)

x²  = 105625 + 22500 - 97500 cos(150)

x²  = 128125 - 97500 *(-0.707)

x²  = 128125 +68942.91

x²  = 197068

x = 443.92 miles.

As a result, the cruise ship has travelled roughly 443.92 miles from its starting point.

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you are in charge of conducting a very important study on the efficacy of imitrex on migraine sufferers. you ask 25 women to test this drug. each of the 25 women is given 'excedrin for migraines' immediately after the onset of their first migraine, after which you measure the time it takes for the headache to subside. after the onset of their second migraine, you give them imitrex and again measure the time it takes for the headache to subside. assuming the data are normally distributed, which is the most appropriate statistical test to determine if imitrex works better than excedrin at eliminating migraines?

Answers

If the p-value obtained from the paired t-test is less than the predetermined level of significance (usually 0.05), then it can be concluded that there is a statistically significant difference between the two treatments, and that imitrex is more effective than excedrin at eliminating migraines.

To determine if Imitrex works better than Excedrin at eliminating migraines in your study, the most appropriate statistical test to use is the Paired Samples t-test.

This test is suitable because:
We have two related samples: the same 25 women are given both Excedrin and Imitrex, so their response times are paired.
We're comparing the mean response times between two treatments, which requires a t-test.

The data is assumed to be normally distributed.
To conduct the Paired Samples t-test, follow these steps:
Calculate the difference in response times for each woman (Imitrex time - Excedrin time).

Calculate the mean of these differences.

Calculate the standard deviation of the differences.

Determine the degrees of freedom (25 women - 1 = 24).

Using the mean, standard deviation, and degrees of freedom, calculate the t-statistic.
Compare the t-statistic to the critical value from the t-distribution table, using your chosen significance level (e.g., 0.05).
If the t-statistic is greater than the critical value, reject the null hypothesis, concluding that there's a significant difference between the effectiveness of Imitrex and Excedrin for migraine relief.

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To determine if Imitrex works better than Excedrin, the most appropriate statistical test to use would be a "paired t-test."

We are comparing the efficacy of Imitrex and Excedrin for Migraine in the same group of 25 women, with each woman acting as her own control. You are measuring the time it takes for the headache to subside after administering each drug. To determine if Imitrex works better than Excedrin, the most appropriate statistical test to use would be a "paired t-test."

Step-by-step explanation:

1. Record the time it takes for the headache to subside after administering Excedrin and Imitrex to each woman.
2. Calculate the difference in time for each woman between the two drugs.
3. Compute the mean and standard deviation of these differences.
4. Perform a paired t-test to compare the mean difference to 0 (no difference between the two drugs).
5. Assess the p-value obtained from the t-test. If the p-value is less than the significance level (usually 0.05), then you can conclude that there is a statistically significant difference between the two drugs, suggesting that Imitrex works better than Excedrin in eliminating migraines.

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Over the past month, the Westminster library has loaned out many CDs, which are categorized by genre. Latin 86 rock 16 hip-hop 45 reggae 126 What is the experimental probability that the next CD loaned out will be a reggae CD?

Answers

Therefore , the solution of the given problem of probability comes out to be the experimental likelihood that a reggae CD will be the next one lent out is roughly 0.4615, or 46.15%.

What exactly is probability?

Any considerations technique's main objective is to determine the likelihood event that a claim is true or that a particular incident will happen. Any number from 0 to 1, where 0 traditionally represents a percentage and 1 typically denotes the degree of certainty, can be used to represent chance. A probability illustration shows the likelihood that a particular event will occur.

Here,

Given: 86 Latin CDs were lent out, 16 were rock CDs, 45 were hip-hop CDs, and 126 were reggae CDs.

=> CDs loaned out in total: 86 + 16 + 45 + 126 = 273

=> 126 reggae CDs were lent out.

Number of reggae CDs loaned out relative to the total number of CDs loaned out, experimental likelihood of lending a reggae CD

=> A reggae CD's experimental chance of being lent out  = 126/273.

We may calculate the experimental probability's approximation using a calculator as follows:

=> A reggae CD will be lent out with an experimental probability of 0.4615.

Therefore, the experimental likelihood that a reggae CD will be the next one lent out is roughly 0.4615, or 46.15%.

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Answer:

126/273

Step-by-step explanation:

match the answers to the questions. ⚠️due tmr!

Answers

Below is the correct matching of the questions to the right answers

Mean average deviation - (C) The average deviation of the data from the mean.Range of a data set - (E) The difference between the highest value and the lowest value in a numerical data set.First quartile - (AB) The median in the lower half of the rank-ordered data.Second quartile - (B) The median value in the data set.Third quartile - (A) The median in the upper half of the rank-ordered data.Interquartile range - (D) The distance between the first and third quartiles of the data set.

What you should know about statistical measures

The statistical measures listed in the previous question are often used to describe and analyze statistical variables.

For instance, the range of a data set is a measure of the spread of values in a variable, while the quartiles and interquartile range provide information about the distribution of the variable. Mean average deviation is a measure of the variability of the variable around its mean value.

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1. Mean average deviation - The average deviation of the data from the mean.

2. Range of a data set - The difference between the highest value and the lowest value in a numerical data set.

3. First quartile - The median in the upper half of the rank-ordered data.

4. Second quartile - The median value in the data set.

5. Third quartile - The median in the lower half of the rank-ordered data.

6. Interquartile range - he distance between the first and third quartiles of the data set.

What you should know about statistical measures?

The statistical measures are often used to describe and analyze statistical variables. For instance, the range of a data set is a measure of the spread of values in a variable, while the quartiles and interquartile range provide information about the distribution of the variable. Mean average deviation is a measure of the variability of the variable around its mean value.

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Verify that the segments are parallel.

10. CD || AB

Answers

This means that the corresponding sides of the two triangles are in proportion, and therefore CD is parallel to AB, as required.

What is triangle?

A triangle is a polygon with three sides and three angles. It is one of the basic shapes in geometry and is often used in mathematics, science, engineering, and art. Triangles can be classified into different types based on the length of their sides and the size of their angles. Triangles are used in various applications, such as in the construction of buildings, bridges, and other structures, as well as in navigation and surveying. They are also important in various fields of mathematics, including trigonometry and geometry.

Here,

To use similarity theorems to show that CD is parallel to AB, we need to first establish that triangles AEB and CED are similar. If we can show that these triangles are similar, then we can use the corresponding angles theorem, which states that if two pairs of corresponding angles are congruent, then the lines containing the sides are parallel.

Let's compare the two triangles AEB and CED:

Angle AEB is congruent to angle CED (both are vertical angles).

Angle EAB is congruent to angle ECD (both are alternate interior angles formed by a transversal cutting parallel lines AB and CD).

Angle BAE is congruent to angle DCE (both are alternate interior angles formed by a transversal cutting parallel lines AB and CD).

Therefore, we have established that triangles AEB and CED are similar by the angle-angle-angle similarity theorem.

Now that we have shown that the triangles are similar, we can use the corresponding sides theorem, which states that the corresponding sides of similar triangles are in proportion, to find out if CD is parallel to AB.

The corresponding sides of AEB and CED are:

AE/CE = AB/CD

Substituting the given values, we have:

AC + CE / CE = AB / BD

4 + 12 / 12 = AB / (14/3)

16/12 = AB / (14/3)

AB = (16/12) x (14/3)

= 56/9

Now we can use the corresponding sides theorem to find the length of CD:

AE/CE = AB/CD

Substituting the values we have found, we get:

4/12 = (56/9)/CD

CD = (56/9) x (12/4)

= 14

Since we have found that AB = 56/9 and CD = 14, we can see that:

AB/CD = (56/9)/14

= 4/3

This means that the corresponding sides of the two triangles are in proportion, and therefore CD is parallel to AB, as required.

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A circle with center O and radius 5 has central angle XOY. X and Y are points on the circle. ​If the measure of arc XY is 90 degrees, what is the length of chord XY?

Answers

The length of chord XY is 5√2.

What is the length of the chord?

It is described as the line segment that connects any two points on the circle's circumference without going through the circle's center. As a result, the diameter is the chord of a particular circle that is the longest and goes through its center. In mathematics, determining the chord's length can be crucial at times.

Here, we have

Given: A circle with center O and radius 5 has a central angle XOY. X and Y are points on the circle. ​If the measure of arc XY is 90 degrees.

We have to find the length of chord XY.

∠XOY = 90°

OX = OY = 5

We draw a perpendicular from the center to chord XY bisect XY at D.

Now, since OD bisects ∠XOY

∠XOD = ∠YOD = 90°/2 = 45°

Now, in ΔXOD

sin45° = XD/OX

1/√2 = XD/5

5/√2  = XD...(1)

In ΔYOD

sin45° = YD/OY

5/√2  = YD...(2)

Adding (1) and (2), we get

XD + YD = 5/√2 + 5/√2

XY = 5√2

Hence, the length of chord XY is 5√2.

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help please? I just need an answer. A clear explanation earns brainliest.

Answers

Answer:

9. You don't need to take action because the denominator is the same. You only operate on the numerator.

10. Use equivalent fractions that do have a shared denominator if the denominators are not the same. To accomplish this, you must identify the two denominators' least common multiples (LCM). Rename the fractions having a common denominator before adding those with different denominators.

Step-by-step explanation:

9. You don't need to take action because the denominator is the same. You only operate on the numerator.

10. Use equivalent fractions that do have a shared denominator if the denominators are not the same. To accomplish this, you must identify the two denominators' least common multiples (LCM). Rename the fractions having a common denominator before adding those with different denominators.

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